[time-nuts] Semi-OT: Hardware for WR-90 waveguide sections?

Mike Feher mfeher at eozinc.com
Sun Sep 19 02:26:44 UTC 2010


The field is contained entirely within the guide, so, you can use any type
of fastener on the flanges. Typically, however, brass or stainless is the
most common. It is OK to use ferrous screws/nuts, but they can become
magnetized if close to an isolator. If using one of those, then care should
be taken regardless, not because of the effects on the performance but the
possibility of getting iron shavings into the guide. 73 - Mike

Mike B. Feher, N4FS
89 Arnold Blvd.
Howell, NJ, 07731
732-886-5960



-----Original Message-----
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
Behalf Of k6rtm at comcast.net
Sent: Saturday, September 18, 2010 9:17 PM
To: time-nuts at febo.com
Subject: [time-nuts] Semi-OT: Hardware for WR-90 waveguide sections?

Not completely OT, as stable and accurate timebases are very useful in
microwave systems... 

What's the proper hardware to use for connecting WR-90 (10GHz) waveguide
sections? I figure 8-32 brass or stainless, avoiding anything magnetic. 

Bob K6RTM in Silicon Valley 

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